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ChemistryChemistry
27 January, 08:44

Which of the following is NOT a pure substance?

A. milk

B. oxygen

C. water

D. carbon dioxide

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Answers (2)
  1. 27 January, 10:20
    0
    A) because you have to mix different substances to create milk
  2. 27 January, 12:19
    0
    The answer is b. Oxygen. Among the other substance stated, oxygen is a pure substance because of it is only compose of two oxygen molecules while the water contain hydrogen and oxygen while carbon dioxide composes of carbon and oxygen while milk is composed of water and milk powder
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